9 November 1971 (x) kills his 85-year-old mother Alma, his 45-year-old wife Helen and his children 16-year-old Patricia, 15-year-old John and 13-year-old Frederick with a 9mm Steyr 1912 semi-automatic handgun and a Colt .22 caliber revolver at the age of 46 in Westfield, United States.